I can reproduce this every time with the latest steps. Here is a full back trace from gdb: Thread 1 received signal SIGSEGV, Segmentation fault. 0x0000000080795252 in KIGFX::VIEW_GROUP::ViewDraw (this=0x1ecb8668, aLayer=133, aView=0x143352f0) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view_group.cpp:125 125 item->ViewGetLayers( item_layers, item_layers_count ); (gdb) bt #0 0x0000000080795252 in KIGFX::VIEW_GROUP::ViewDraw (this=0x1ecb8668, aLayer=133, aView=0x143352f0) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view_group.cpp:125 #1 0x000000008079315b in KIGFX::VIEW::draw (this=0x143352f0, aItem= 0x1ecb8668, aLayer=133, aImmediate=false) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view.cpp:1049 #2 0x0000000080933cf2 in KIGFX::VIEW::drawItem::operator() (this=0x849ccf0, aItem=0x1ecb8668) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view.cpp:980 #3 0x000000008093bf6d in RTree::Search (this=0x143836d0, a_node=0x14383720, a_rect=0x849cc40, a_visitor=..., a_foundCount=@0x849cc3c: 0) at C:/msys64/home/wstambaugh/src/kicad-trunk/include/geometry/rtree.h:499 #4 0x000000008093c03b in RTree::Search (this=0x143836d0, a_min=0x849cca8, a_max=0x849cca0, a_visitor=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/include/geometry/rtree.h:154 #5 0x000000008092f274 in KIGFX::VIEW_RTREE::Query ( this=0x143836d0, aBounds=..., aVisitor=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/include/view/view_rtree.h:98 #6 0x0000000080792fef in KIGFX::VIEW::redrawRect (this=0x143352f0, aRect=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view.cpp:1019 #7 0x00000000807936a2 in KIGFX::VIEW::Redraw (this=0x143352f0) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/view/view.cpp:1163 #8 0x00000000807d8134 in EDA_DRAW_PANEL_GAL::onPaint (this=0x13152640) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/draw_panel_gal.cpp:208 #9 0x000000006a4c2f24 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #10 0x000000006a62cd42 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #11 0x000000006a62d14d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #12 0x000000006a62d1e2 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #13 0x000000006a62d28d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #14 0x000000006a62d321 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #15 0x000000006a62de09 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #16 0x000000006a4c513f in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #17 0x00000000807a4d91 in TOOL_MANAGER::ProcessEvent (this=0x1ec94650, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_manager.cpp:786 #18 0x000000008079d31d in CONTEXT_MENU::onMenuEvent (this=0x1edfa110, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/context_menu.cpp:393 #19 0x000000006a4c2f24 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #20 0x000000006a62cd42 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #21 0x000000006a62d14d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #22 0x000000006a62d1e2 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #23 0x000000006a62d28d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #24 0x000000006a62d321 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #25 0x000000006a62d05b in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #26 0x0000000008e11f77 in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #27 0x0000000008ccf065 in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #28 0x0000000008c5c16a in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #29 0x0000000008caea70 in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #30 0x00007ff9ee386d41 in USER32!CallWindowProcW () from C:\WINDOWS\System32\user32.dll #31 0x00007ff9ee386713 in USER32!DispatchMessageW () from C:\WINDOWS\System32\user32.dll #32 0x0000000008c587d1 in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #33 0x0000000008e60c30 in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #34 0x000000008089f837 in wxWindowBase::PopupMenu (this=0x13274390, menu=0x1edfa110, pos=...) at C:/msys64/mingw64/include/wx-3.0/wx/window.h:1216 #35 0x00000000807a4776 in TOOL_MANAGER::dispatchContextMenu (this=0x1ec94650, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_manager.cpp:704 #36 0x00000000807a5498 in TOOL_MANAGER::processEvent (this=0x1ec94650, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_manager.cpp:931 #37 0x00000000807a4cd6 in TOOL_MANAGER::ProcessEvent (this=0x1ec94650, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_manager.cpp:773 #38 0x00000000807a0000 in TOOL_DISPATCHER::handleMouseButton ( this=0x1ecb7840, aEvent=..., aIndex=1, aMotion=false) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_dispatcher.cpp:241 #39 0x00000000807a048c in TOOL_DISPATCHER::DispatchWxEvent (this=0x1ecb7840, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/tool/tool_dispatcher.cpp:353 #40 0x00000000807d9279 in EDA_DRAW_PANEL_GAL::OnEvent (this=0x13152640, aEvent=...) at C:/msys64/home/wstambaugh/src/kicad-trunk/common/draw_panel_gal.cpp:455 #41 0x000000006a4c2f24 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #42 0x000000006a62cd42 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #43 0x000000006a62d14d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #44 0x000000006a62d1e2 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #45 0x000000006a62d28d in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #46 0x000000006a62d321 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #47 0x000000006a62de09 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #48 0x000000006a4c513f in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #49 0x000000006a4fc5f0 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #50 0x000000006a4fc6d0 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #51 0x000000006a4fc339 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #52 0x000000006a4c68fa in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #53 0x00000000004b2d18 in APP_KICAD::OnRun (this=0x9221a20) at C:/msys64/home/wstambaugh/src/kicad-trunk/kicad/kicad.cpp:267 #54 0x000000006a547977 in ?? () from C:\msys64\mingw64\bin\wxbase30u_gcc_custom.dll #55 0x0000000008b7a24b in ?? () from C:\msys64\mingw64\bin\wxmsw30u_core_gcc_custom.dll #56 0x0000000000409ca5 in WinMain (hInstance=0x400000, hPrevInstance=0x0, nCmdShow=10) at C:/msys64/home/wstambaugh/src/kicad-trunk/kicad/kicad.cpp:298 #57 0x00000000004df962 in main (flags=, cmdline=, inst=) at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crt0_c.c:18 #58 0x00000000004013a5 in __tmainCRTStartup () at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c:339 #59 0x00000000004014db in WinMainCRTStartup () at C:/repo/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c:195